Year	current US$
1960	2367800000
1961	3158200000
1962	2470632000
1963	2385959000
1964	2823733000
1965	2972729000
1966	3064439000
1967	4503620000
1968	4914563000
1969	5201108000
1970	5835459000
1971	6147878000
1972	7100898000
1973	10118020000
1974	15654035000
1975	16349307000
1976	17549772000
1977	20321873000
1978	34860993000
1979	45620757000
1980	61304143000
1981	68483043200
1982	67842304031.42
1983	71612248041.04999
1984	73071828608.47
1985	83538370276.95999
1986	83435382985.8
1987	93502353179.31999
1988	119842149630.93999
1989	141060922654.21
1990	157876254669.40997
1991	183918521003.65002
1992	212381463582.51
1993	251075545640.19
1994	297089281614.59
1995	371954510535.92
1996	387296369691.6
1997	385735671638.43
1998	317906867320.37006
1999	356020861941.99
2000	461495148209
2001	467292346497
2002	535359914314
2003	676470019580
2004	893135047296
2005	1047669249842
2006	1225473679431
2007	1456510107781
2008	1763168238686
2009	1496304730679
2010	2050884202027
2011	2545824676832
2012	2679762299479
2013	2837474342464
2014	2845926257877
2015	2423068874740
2016	2418256359126
2017	2796313685615
2018	3209314075080
2019	3133359092390
2020	3047486815274